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Commitments and Contingent Liabilities Asbestos Information (Details) - USD ($)
$ in Millions
3 Months Ended 12 Months Ended
Dec. 31, 2021
Dec. 31, 2019
Mar. 31, 2022
Dec. 31, 2009
Pittsburgh Corning Corporation        
Equity Method Investment, Ownership Percentage     50.00%  
Asbestos Issue        
Loss Contingency, Loss in Period   $ 12    
Other Reserves       $ 162
Loss Contingency, Income $ 133      
Loss Contingency Accrual $ 54   $ 52